Pentecostalism

Pentecostalism, also known as mainline or classical Pentecostalism, is a movement within the evangelical wing of Protestant Christianity that emphasizes direct personal experience of God through baptism with the Holy Spirit. The term Pentecostal is derived from Pentecost, an event that commemorates the descent of the Holy Spirit upon the Apostles and other followers of Jesus Christ while they were in Jerusalem celebrating the Feast of Weeks, as described in the Acts of the Apostles (Acts 2:1–31).

Like other forms of evangelical Protestantism, Pentecostalism adheres to the inerrancy of the Bible and the necessity of being born again: an individual repenting of their sin and "accepting Jesus Christ as their personal Lord and Savior". It is distinguished by belief in both the "baptism in the Holy Spirit" and baptism by water, that enables a Christian to "live a Spirit-filled and empowered life".